G-Power BMW M5 Hurricane RR –the world fastest sedan image

German tuner G-Power grabs bragging rights as the fastest street-legal sedan with this Hurricane M5 RS version of the BMW M5.

According to the folks at Piston Heads, the M5 Hurricane RS managed to exceed expectations….once again. The G-Power M5 Hurricane RS was clocked at 231.2 mph during one of the tuning company’s test.

Output is upped 20 horses from the previous Hurricane’s 730 horsepower, meaning the twin-supercharged 5.0-liter V10 makes 750 hp.

The extra power comes from increased boost levels on the ASA superchargers, and Christian Stöber, the G-Power CEO, says the engine can handle even more boost if necessary in the future.